/**
 * @license Highcharts JS v6.0.0 (2017-10-04)
 * Highcharts funnel module
 *
 * (c) 2010-2017 Torstein Honsi
 *
 * License: www.highcharts.com/license
 */
'use strict';
(function(factory) {
    if (typeof module === 'object' && module.exports) {
        module.exports = factory;
    } else {
        factory(Highcharts);
    }
}(function(Highcharts) {
    (function(Highcharts) {
        /**
         * Highcharts funnel module
         *
         * (c) 2010-2017 Torstein Honsi
         *
         * License: www.highcharts.com/license
         */
        /* eslint indent:0 */

        // create shortcuts
        var seriesType = Highcharts.seriesType,
            seriesTypes = Highcharts.seriesTypes,
            noop = Highcharts.noop,
            pick = Highcharts.pick,
            each = Highcharts.each;


        seriesType('funnel', 'pie',
            /**
             * Funnel charts are a type of chart often used to visualize stages in a sales 
             * project, where the top are the initial stages with the most clients. 
             * It requires that the modules/funnel.js file is loaded.
             *
             * @sample highcharts/demo/funnel/ Funnel demo
             * @extends {plotOptions.pie}
             * @excluding size
             * @product highcharts
             * @optionparent plotOptions.funnel
             */
            {

                /**
                 * Initial animation is by default disabled for the funnel chart.
                 */
                animation: false,

                /**
                 * The center of the series. By default, it is centered in the middle
                 * of the plot area, so it fills the plot area height.
                 * 
                 * @type {Array<String|Number>}
                 * @default ["50%", "50%"]
                 * @since 3.0
                 * @product highcharts
                 */
                center: ['50%', '50%'],

                /**
                 * The width of the funnel compared to the width of the plot area,
                 * or the pixel width if it is a number.
                 * 
                 * @type {Number|String}
                 * @default 90%
                 * @since 3.0
                 * @product highcharts
                 */
                width: '90%',

                /**
                 * The width of the neck, the lower part of the funnel. A number defines
                 * pixel width, a percentage string defines a percentage of the plot
                 * area width.
                 * 
                 * @type {Number|String}
                 * @sample {highcharts} highcharts/demo/funnel/ Funnel demo
                 * @default 30%
                 * @since 3.0
                 * @product highcharts
                 */
                neckWidth: '30%',

                /**
                 * The height of the funnel or pyramid. If it is a number it defines
                 * the pixel height, if it is a percentage string it is the percentage
                 * of the plot area height.
                 * 
                 * @type {Number|String}
                 * @sample {highcharts} highcharts/demo/funnel/ Funnel demo
                 * @since 3.0
                 * @product highcharts
                 */
                height: '100%',

                /**
                 * The height of the neck, the lower part of the funnel. A number defines
                 * pixel width, a percentage string defines a percentage of the plot
                 * area height.
                 * 
                 * @type {Number|String}
                 * @default 25%
                 * @product highcharts
                 */
                neckHeight: '25%',

                /**
                 * A reversed funnel has the widest area down. A reversed funnel with
                 * no neck width and neck height is a pyramid.
                 * 
                 * @type {Boolean}
                 * @default false
                 * @since 3.0.10
                 * @product highcharts
                 */
                reversed: false,

                /** @ignore */
                size: true, // to avoid adapting to data label size in Pie.drawDataLabels


            },

            // Properties
            {
                animate: noop,

                /**
                 * Overrides the pie translate method
                 */
                translate: function() {

                    var
                        // Get positions - either an integer or a percentage string must be given
                        getLength = function(length, relativeTo) {
                            return (/%$/).test(length) ?
                                relativeTo * parseInt(length, 10) / 100 :
                                parseInt(length, 10);
                        },

                        sum = 0,
                        series = this,
                        chart = series.chart,
                        options = series.options,
                        reversed = options.reversed,
                        ignoreHiddenPoint = options.ignoreHiddenPoint,
                        plotWidth = chart.plotWidth,
                        plotHeight = chart.plotHeight,
                        cumulative = 0, // start at top
                        center = options.center,
                        centerX = getLength(center[0], plotWidth),
                        centerY = getLength(center[1], plotHeight),
                        width = getLength(options.width, plotWidth),
                        tempWidth,
                        getWidthAt,
                        height = getLength(options.height, plotHeight),
                        neckWidth = getLength(options.neckWidth, plotWidth),
                        neckHeight = getLength(options.neckHeight, plotHeight),
                        neckY = (centerY - height / 2) + height - neckHeight,
                        data = series.data,
                        path,
                        fraction,
                        half = options.dataLabels.position === 'left' ? 1 : 0,

                        x1,
                        y1,
                        x2,
                        x3,
                        y3,
                        x4,
                        y5;

                    // Return the width at a specific y coordinate
                    series.getWidthAt = getWidthAt = function(y) {
                        var top = (centerY - height / 2);

                        return y > neckY || height === neckHeight ?
                            neckWidth :
                            neckWidth + (width - neckWidth) * (1 - (y - top) / (height - neckHeight));
                    };
                    series.getX = function(y, half, point) {
                        return centerX + (half ? -1 : 1) * ((getWidthAt(reversed ? 2 * centerY - y : y) / 2) + point.labelDistance);
                    };

                    // Expose
                    series.center = [centerX, centerY, height];
                    series.centerX = centerX;

                    /*
                     * Individual point coordinate naming:
                     *
                     * x1,y1 _________________ x2,y1
                     *  \                         /
                     *   \                       /
                     *    \                     /
                     *     \                   /
                     *      \                 /
                     *     x3,y3 _________ x4,y3
                     *
                     * Additional for the base of the neck:
                     *
                     *       |               |
                     *       |               |
                     *       |               |
                     *     x3,y5 _________ x4,y5
                     */




                    // get the total sum
                    each(data, function(point) {
                        if (!ignoreHiddenPoint || point.visible !== false) {
                            sum += point.y;
                        }
                    });

                    each(data, function(point) {
                        // set start and end positions
                        y5 = null;
                        fraction = sum ? point.y / sum : 0;
                        y1 = centerY - height / 2 + cumulative * height;
                        y3 = y1 + fraction * height;
                        tempWidth = getWidthAt(y1);
                        x1 = centerX - tempWidth / 2;
                        x2 = x1 + tempWidth;
                        tempWidth = getWidthAt(y3);
                        x3 = centerX - tempWidth / 2;
                        x4 = x3 + tempWidth;

                        // the entire point is within the neck
                        if (y1 > neckY) {
                            x1 = x3 = centerX - neckWidth / 2;
                            x2 = x4 = centerX + neckWidth / 2;

                            // the base of the neck
                        } else if (y3 > neckY) {
                            y5 = y3;

                            tempWidth = getWidthAt(neckY);
                            x3 = centerX - tempWidth / 2;
                            x4 = x3 + tempWidth;

                            y3 = neckY;
                        }

                        if (reversed) {
                            y1 = 2 * centerY - y1;
                            y3 = 2 * centerY - y3;
                            y5 = (y5 ? 2 * centerY - y5 : null);
                        }
                        // save the path
                        path = [
                            'M',
                            x1, y1,
                            'L',
                            x2, y1,
                            x4, y3
                        ];
                        if (y5) {
                            path.push(x4, y5, x3, y5);
                        }
                        path.push(x3, y3, 'Z');

                        // prepare for using shared dr
                        point.shapeType = 'path';
                        point.shapeArgs = {
                            d: path
                        };


                        // for tooltips and data labels
                        point.percentage = fraction * 100;
                        point.plotX = centerX;
                        point.plotY = (y1 + (y5 || y3)) / 2;

                        // Placement of tooltips and data labels
                        point.tooltipPos = [
                            centerX,
                            point.plotY
                        ];

                        // Slice is a noop on funnel points
                        point.slice = noop;

                        // Mimicking pie data label placement logic
                        point.half = half;

                        if (!ignoreHiddenPoint || point.visible !== false) {
                            cumulative += fraction;
                        }
                    });
                },

                /**
                 * Funnel items don't have angles (#2289)
                 */
                sortByAngle: function(points) {
                    points.sort(function(a, b) {
                        return a.plotY - b.plotY;
                    });
                },

                /**
                 * Extend the pie data label method
                 */
                drawDataLabels: function() {
                    var series = this,
                        data = series.data,
                        labelDistance = series.options.dataLabels.distance,
                        leftSide,
                        sign,
                        point,
                        i = data.length,
                        x,
                        y;

                    // In the original pie label anticollision logic, the slots are distributed
                    // from one labelDistance above to one labelDistance below the pie. In funnels
                    // we don't want this.
                    series.center[2] -= 2 * labelDistance;

                    // Set the label position array for each point.
                    while (i--) {
                        point = data[i];
                        leftSide = point.half;
                        sign = leftSide ? 1 : -1;
                        y = point.plotY;
                        point.labelDistance = pick(
                            point.options.dataLabels && point.options.dataLabels.distance,
                            labelDistance
                        );

                        series.maxLabelDistance = Math.max(point.labelDistance, series.maxLabelDistance || 0);
                        x = series.getX(y, leftSide, point);

                        // set the anchor point for data labels
                        point.labelPos = [
                            0, // first break of connector
                            y, // a/a
                            x + (point.labelDistance - 5) * sign, // second break, right outside point shape
                            y, // a/a
                            x + point.labelDistance * sign, // landing point for connector
                            y, // a/a
                            leftSide ? 'right' : 'left', // alignment
                            0 // center angle
                        ];
                    }

                    seriesTypes.pie.prototype.drawDataLabels.call(this);
                }

            });


        /**
         * A `funnel` series. If the [type](#series.funnel.type) option is
         * not specified, it is inherited from [chart.type](#chart.type).
         * 
         * For options that apply to multiple series, it is recommended to add
         * them to the [plotOptions.series](#plotOptions.series) options structure.
         * To apply to all series of this specific type, apply it to [plotOptions.
         * funnel](#plotOptions.funnel).
         * 
         * @type {Object}
         * @extends series,plotOptions.funnel
         * @excluding dataParser,dataURL,stack,xAxis,yAxis
         * @product highcharts
         * @apioption series.funnel
         */

        /**
         * An array of data points for the series. For the `funnel` series type,
         * points can be given in the following ways:
         * 
         * 1.  An array of numerical values. In this case, the numerical values
         * will be interpreted as `y` options. Example:
         * 
         *  ```js
         *  data: [0, 5, 3, 5]
         *  ```
         * 
         * 2.  An array of objects with named values. The objects are point
         * configuration objects as seen below. If the total number of data
         * points exceeds the series' [turboThreshold](#series.funnel.turboThreshold),
         * this option is not available.
         * 
         *  ```js
         *     data: [{
         *         y: 3,
         *         name: "Point2",
         *         color: "#00FF00"
         *     }, {
         *         y: 1,
         *         name: "Point1",
         *         color: "#FF00FF"
         *     }]
         *  ```
         * 
         * @type {Array<Object|Number>}
         * @extends series.pie.data
         * @excluding sliced
         * @sample {highcharts} highcharts/chart/reflow-true/ Numerical values
         * @sample {highcharts} highcharts/series/data-array-of-arrays/ Arrays of numeric x and y
         * @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/ Arrays of datetime x and y
         * @sample {highcharts} highcharts/series/data-array-of-name-value/ Arrays of point.name and y
         * @sample {highcharts} highcharts/series/data-array-of-objects/ Config objects
         * @product highcharts
         * @apioption series.funnel.data
         */

        /** 
         * Pyramid series type.
         */
        seriesType('pyramid', 'funnel',
            /** 
             * A pyramid series is a special type of funnel, without neck and reversed by
             * default.
             *
             * @sample highcharts/demo/pyramid/ Pyramid chart
             * 
             * @extends plotOptions.funnel
             * @product highcharts
             * @optionparent plotOptions.pyramid
             */
            {

                /**
                 * The pyramid neck width is zero by default, as opposed to the funnel, 
                 * which shares the same layout logic.
                 *
                 * @type String
                 * @default 0%
                 * @since 3.0.10
                 * @product highcharts
                 */
                neckWidth: '0%',

                /**
                 * The pyramid neck width is zero by default, as opposed to the funnel, 
                 * which shares the same layout logic.
                 *
                 * @type String
                 * @default 0%
                 * @since 3.0.10
                 * @product highcharts
                 */
                neckHeight: '0%',

                /**
                 * The pyramid is reversed by default, as opposed to the funnel, which
                 * shares the layout engine, and is not reversed.
                 * 
                 * @type {Boolean}
                 * @default true
                 * @since 3.0.10
                 * @product highcharts
                 */
                reversed: true
            });

        /**
         * A `pyramid` series. If the [type](#series.pyramid.type) option is
         * not specified, it is inherited from [chart.type](#chart.type).
         * 
         * For options that apply to multiple series, it is recommended to add
         * them to the [plotOptions.series](#plotOptions.series) options structure.
         * To apply to all series of this specific type, apply it to [plotOptions.
         * pyramid](#plotOptions.pyramid).
         * 
         * @type {Object}
         * @extends series,plotOptions.pyramid
         * @excluding dataParser,dataURL,stack,xAxis,yAxis
         * @product highcharts
         * @apioption series.pyramid
         */

        /**
         * An array of data points for the series. For the `pyramid` series
         * type, points can be given in the following ways:
         * 
         * 1.  An array of numerical values. In this case, the numerical values
         * will be interpreted as `y` options. Example:
         * 
         *  ```js
         *  data: [0, 5, 3, 5]
         *  ```
         * 
         * 2.  An array of objects with named values. The objects are point
         * configuration objects as seen below. If the total number of data
         * points exceeds the series' [turboThreshold](#series.pyramid.turboThreshold),
         * this option is not available.
         * 
         *  ```js
         *     data: [{
         *         y: 9,
         *         name: "Point2",
         *         color: "#00FF00"
         *     }, {
         *         y: 6,
         *         name: "Point1",
         *         color: "#FF00FF"
         *     }]
         *  ```
         * 
         * @type {Array<Object|Number>}
         * @extends series.pie.data
         * @excluding sliced
         * @sample {highcharts} highcharts/chart/reflow-true/ Numerical values
         * @sample {highcharts} highcharts/series/data-array-of-arrays/ Arrays of numeric x and y
         * @sample {highcharts} highcharts/series/data-array-of-arrays-datetime/ Arrays of datetime x and y
         * @sample {highcharts} highcharts/series/data-array-of-name-value/ Arrays of point.name and y
         * @sample {highcharts} highcharts/series/data-array-of-objects/ Config objects
         * @product highcharts
         * @apioption series.pyramid.data
         */


    }(Highcharts));
}));
